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Showing content with the highest reputation on 09/30/2021 in all areas

  1. 1 point
    a thing to know about IR illuminators: the ones shown above have large LEDs. this is a good thing. you can get an illuminator the size of the first one shown, with 96 tiny LEDs. the problem is, one of them gets hot and burns out, leaving 95 LEDs to suck up the same power source. the voltage across the remaining LEDs ratchets up a notch. the extra voltage burns out another LED, . the voltage across the remaining LEDs ratchets up another notch... pretty soon, you have a dozen surviving LEDs, which all burn up at once. big LEDs can handle more heat. the big LED illuminators operate for years. the ones with 4 vast LEDs in a 4 inch circle outlast the 48 LEDs in a 4 inch circle like a Chevy outlasts a Yugo.
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